include button

mixin file(params)
  - params = params || {}
  - var input = params.input || {}
  - var html = params.html
  - var text = params.text
  - delete params.input
  - delete params.html
  - delete params.text

  +button(params)(class="btn-file")&attributes(attributes)
    span
      != html
      block
      = text
    input(
      type="file"
      name=input.name
      disabled=!!params.disabled
    )&attributes(input.attributes)